124793-11-9 31972-43-7 BAY 68138 SULFOXIDE Fenamiphos sulfoxide Fenamiphos sulphoxide O-Ethyl O-(4-methylsulfinyl)-m-tolyl)isopropylphosphoramidate Phosphoramidic acid, (1-methylethyl)-, ethyl 3-methyl-4-(methylsulfinyl)phenyl ester Phosphoramidic acid, isopropyl-, ethyl 4-(ethylsulfinyl)-m-tolyl ester